I have an xEM implant that I would like to clone an Indala card onto using a proxmark (V2 dev kit from Elechouse). I can successfully clone the card to a T5577 key fob, but the stock antenna doesn’t seem to couple well with the implant.

I’m thinking I need a new antenna for this, and I’ve seen some people mention using the antenna from the xEM access controller, building their own, or others potentially for sale.